Which hosts does the tapeworm Diphyllobothrium latum require to complete its lifecycle?
A) cows and humans
B) ants, sheep, and mammals
C) snails, chickens, and mammals
D) crustaceans, fish, and mammals
E) pigs and mammals
Answer: D
Biology & Microbiology
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What types of cells produce antibodies?
a. T helper cells b. cytotoxic T cells c. plasma cells d. memory B cells
Biology & Microbiology
The growth hormone is
a. prolactin. b. adrenalin. c. thyroxine. d. ACTH. e. somatotropin.
Biology & Microbiology
For monohybrid experiments, a testcross could result in which of the following ratios?
a. 1:1 b. 2:1 c. 9:3:3:1 d. 1:2:1 e. 3:1
Biology & Microbiology
The transfer of heat from arteries that carry warm blood past veins that carry cooler blood is an example of
A) insulation. B) countercurrent heat exchange. C) evaporative cooling. D) behavioral thermoregulation.
Biology & Microbiology